Washing machine impeller having nonradial vanes



Nov. 17, 1953 B. PELLERIN WASHING MACHINE IMPEL-LEIR HAVING NONRADIAL VANES Filed June 2, 1952 llllrlclxl .x1 alii? Patented Nov. 17, 1953 OFFICE WASHING MACHINE IMPELLER HAVING NONRADIAL VANES Bruno Pellerin, Shawinigan Falls, Quebec Canad Application June 2, 1952, Serial No. 291,243

1 claim. l

The present invention pertains to a novel washing machine.

The principal object of the invention is to provide a washing machine which -requires less soap than other machines and less hot water, current and time.

Another object is to provide a machine that washes the load gently or with little force so that the life thereof is prolonged. Thus, the finest fabrics can be Washed without damage since there is no friction nor traction thereon.

Another object is to wash the pieces by action of the water alone and thus gently as set forth above, i. e. Without mechanical action on the pieces. washing and treatment of a larger load in a tub of normal capacity.

Still another object is to provide a durable, relatively simple and inexpensive construction for the purposes set forth.

In the accomplishment of these objects, the device consists of a cylindrical tub in a square housing that imparts a modern appearance. The top of the tub has a hinged cover, and in the bottom is mounted an agitator consisting of a disk having curved vanes on its upper surface. In the center of the bottom of the tub is formed a well in which a vertical driving shaft is connected to the disk. Below the tub, the shaft carries a pulley driven by a belt from an electric motor.

The invention is fully disclosed by way of example in the following description and in the accompanying drawings in which:

Figure 1 is a plan view of the machine;

Figure 2 is a section on the line 2-2 of Figure 1;

Figure 3 is a section on the line 3--3 oi' Figure 2;

Figure 4 is a perspective view of the agitator; and

Figure 5 is a partial section of the agitator.

Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughout.

The machine includes a cylindrical tub I set in a square housing 2 which extends downward to form an enclosing base for the mechanism.

The housing is mounted on four casters 3 and has a iioor 4. It is also tted with a cover 5 mounted on hinges, which also applies to the tub I.

At the bottom of the tub is formed a well 1 in the center of which is mounted the upper end of a shaft 8 which extends to the oor 4 and is A further object is to obtain rapid 2 there received in a bearing 9 ltted in another well III.

As the midpoint of the shaft 8 is secured a pulley II joined by a belt I2 to a smaller pulley I3 keyed on the shaft I4 of an electric motor I5. At a short distance above the bottom of the tub I is located an agitator or impeller comprising a disk I6 covering the entire bottom. A bearing I 'l is formed on the lower surface of the disk which sets on the upper end of the shaft 8. Two lingers I9 hang from this bearing (Figure 5) and are spaced apart to engage opposite points on a pin 20 passed through the shaft 8. On the disk I6 are secured two curved varies 2I` extending inward from the edge in parallel relation and having a substantial spacing between them. The spacing is 180 on the circumference, where they are angular to the tangents. The secured edges of the vanes are rectilinear, and the vanes are curved and of semi-ovoid shape in plan view, tapering toward the circumference of the disk.

On the inner vertical wall of the tub I are mounted three ribs 22 elongated vertically and pointed at both ends. They are equidistantly spaced and midway between the ends of the tub.

Below the tub is another electric motor 23 having its shaft formed as a sleeve 24 receiving the lower end of another shaft 25 which exten-ds into the mounting 26 of a wringer comprising two parallel rubber rollers 21. The shaft 25 carries at its upper end a worm 28 engaging a pinion 29 secured on the shaft 30 of one of the rollers 21. The other roller turns by friction with the flrst roller. For emptying the tub, a pipe 3l eX- tends from the well 'I through the housing 2.

In the use of the device, the wash is placed on the disk I6 after the necessary soap and water have been put in the tub. When the motor I 5 is started, the vanes 2l agitate the solution and tumble the wash therein. By reason of the centrifugal action, the wash comes into contact with the ribs 22 which partially retard the rotary movement and the displacement. The pieces remaining at the bottom of the tub are suspended in the solution, which penetrates them without mechanical pressure. The agitation of the solution alone effects the washing which is performed rapidly and without damage or tearing of the wash.

The washing of the load is automatic, and because the load tends to descend by gravity, the rotating vanes impart to the wash an intermittent upward movement occasioned through the agitation of the solution. The oscillation and 3 agitation of the load in the tub assures perfect Washing without damage to the finest pieces.

Although a specific embodiment of the invention has been illustrated and described, it will be understood that various alterations in the details of construction may be made without departing from the scope of the invention as indicated by the appended claim.

WhatI claim is:

A washing machine comprising a tub, a disk rotatably mounted in the bottom thereof, a vertical shaft extending upward to the` lower surface of said disk and fitted non-rotatably therein, vanes on the upper surface of said disk, means 4 for rotating said shaft, said vanes being nonradial to said disk, said vanes being secured to the disk on parallel lines, curved through 90,

and semi-ovoid in plan view.

BRUNO PELLERIN.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 10 1,580,778 coverstone Apr. 13, 1926 1,721,956 Hoff July 23, 1929 2,192,258 Skinner Mar. 5, 1940 2,264,202 Forney Nov. 25, 1941 

